PART # A21100KIT
B series Cummins alternator up-grade kit.
Benefits: high amp output, more power at low rpms, more available space than similar Cummins alternator kit.


Alternator kit includes:belt, brackets and hardware

Measured:

RPM	849
VOLTS	14.1
IDLE AMPS	121.2
1200 RPM AMPS	168.4

OTHER OBSERVATIONS:
Belt tracking excellent at idle
Belt walking during rapid acceleration - none observed
Tentioner remained stable through all RPM ranges

Installation on Cummins 4BT Engine